318848648 has 8 divisors (see below), whose sum is σ = 597841230. Its totient is φ = 159424320.

The previous prime is 318848639. The next prime is 318848657. The reversal of 318848648 is 846848813.

It is an interprime number because it is at equal distance from previous prime (318848639) and next prime (318848657).

It can be written as a sum of positive squares in only one way, i.e., 309126724 + 9721924 = 17582^2 + 3118^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 318848596 and 318848605.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19928033 + ... + 19928048.

Almost surely, 2^318848648 is an apocalyptic number.

It is an amenable number.

318848648 is a deficient number, since it is larger than the sum of its proper divisors (278992582).

318848648 is a wasteful number, since it uses less digits than its factorization.

318848648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39856087 (or 39856083 counting only the distinct ones).

The product of its digits is 1179648, while the sum is 50.

The square root of 318848648 is about 17856.3335542322. Note that the first 3 decimals coincide. The cubic root of 318848648 is about 683.1690661001.

The spelling of 318848648 in words is "three hundred eighteen million, eight hundred forty-eight thousand, six hundred forty-eight".